Andrew's git - gitweb.git/blob

   1#include "builtin.h"
   2#include "cache.h"
   3#include "color.h"
   4#include "parse-options.h"
   5
   6static const char *const builtin_config_usage[] = {
   7        N_("git config [options]"),
   8        NULL
   9};
  10
  11static char *key;
  12static regex_t *key_regexp;
  13static regex_t *regexp;
  14static int show_keys;
  15static int use_key_regexp;
  16static int do_all;
  17static int do_not_match;
  18static char delim = '=';
  19static char key_delim = ' ';
  20static char term = '\n';
  21
  22static int use_global_config, use_system_config, use_local_config;
  23static const char *given_config_file;
  24static const char *given_config_blob;
  25static int actions, types;
  26static const char *get_color_slot, *get_colorbool_slot;
  27static int end_null;
  28static int respect_includes = -1;
  29
  30#define ACTION_GET (1<<0)
  31#define ACTION_GET_ALL (1<<1)
  32#define ACTION_GET_REGEXP (1<<2)
  33#define ACTION_REPLACE_ALL (1<<3)
  34#define ACTION_ADD (1<<4)
  35#define ACTION_UNSET (1<<5)
  36#define ACTION_UNSET_ALL (1<<6)
  37#define ACTION_RENAME_SECTION (1<<7)
  38#define ACTION_REMOVE_SECTION (1<<8)
  39#define ACTION_LIST (1<<9)
  40#define ACTION_EDIT (1<<10)
  41#define ACTION_SET (1<<11)
  42#define ACTION_SET_ALL (1<<12)
  43#define ACTION_GET_COLOR (1<<13)
  44#define ACTION_GET_COLORBOOL (1<<14)
  45
  46#define TYPE_BOOL (1<<0)
  47#define TYPE_INT (1<<1)
  48#define TYPE_BOOL_OR_INT (1<<2)
  49#define TYPE_PATH (1<<3)
  50
  51static struct option builtin_config_options[] = {
  52        OPT_GROUP(N_("Config file location")),
  53        OPT_BOOLEAN(0, "global", &use_global_config, N_("use global config file")),
  54        OPT_BOOLEAN(0, "system", &use_system_config, N_("use system config file")),
  55        OPT_BOOLEAN(0, "local", &use_local_config, N_("use repository config file")),
  56        OPT_STRING('f', "file", &given_config_file, N_("file"), N_("use given config file")),
  57        OPT_STRING(0, "blob", &given_config_blob, N_("blob-id"), N_("read config from given blob object")),
  58        OPT_GROUP(N_("Action")),
  59        OPT_BIT(0, "get", &actions, N_("get value: name [value-regex]"), ACTION_GET),
  60        OPT_BIT(0, "get-all", &actions, N_("get all values: key [value-regex]"), ACTION_GET_ALL),
  61        OPT_BIT(0, "get-regexp", &actions, N_("get values for regexp: name-regex [value-regex]"), ACTION_GET_REGEXP),
  62        OPT_BIT(0, "replace-all", &actions, N_("replace all matching variables: name value [value_regex]"), ACTION_REPLACE_ALL),
  63        OPT_BIT(0, "add", &actions, N_("add a new variable: name value"), ACTION_ADD),
  64        OPT_BIT(0, "unset", &actions, N_("remove a variable: name [value-regex]"), ACTION_UNSET),
  65        OPT_BIT(0, "unset-all", &actions, N_("remove all matches: name [value-regex]"), ACTION_UNSET_ALL),
  66        OPT_BIT(0, "rename-section", &actions, N_("rename section: old-name new-name"), ACTION_RENAME_SECTION),
  67        OPT_BIT(0, "remove-section", &actions, N_("remove a section: name"), ACTION_REMOVE_SECTION),
  68        OPT_BIT('l', "list", &actions, N_("list all"), ACTION_LIST),
  69        OPT_BIT('e', "edit", &actions, N_("open an editor"), ACTION_EDIT),
  70        OPT_STRING(0, "get-color", &get_color_slot, N_("slot"), N_("find the color configured: [default]")),
  71        OPT_STRING(0, "get-colorbool", &get_colorbool_slot, N_("slot"), N_("find the color setting: [stdout-is-tty]")),
  72        OPT_GROUP(N_("Type")),
  73        OPT_BIT(0, "bool", &types, N_("value is \"true\" or \"false\""), TYPE_BOOL),
  74        OPT_BIT(0, "int", &types, N_("value is decimal number"), TYPE_INT),
  75        OPT_BIT(0, "bool-or-int", &types, N_("value is --bool or --int"), TYPE_BOOL_OR_INT),
  76        OPT_BIT(0, "path", &types, N_("value is a path (file or directory name)"), TYPE_PATH),
  77        OPT_GROUP(N_("Other")),
  78        OPT_BOOLEAN('z', "null", &end_null, N_("terminate values with NUL byte")),
  79        OPT_BOOL(0, "includes", &respect_includes, N_("respect include directives on lookup")),
  80        OPT_END(),
  81};
  82
  83static void check_argc(int argc, int min, int max) {
  84        if (argc >= min && argc <= max)
  85                return;
  86        error("wrong number of arguments");
  87        usage_with_options(builtin_config_usage, builtin_config_options);
  88}
  89
  90static int show_all_config(const char *key_, const char *value_, void *cb)
  91{
  92        if (value_)
  93                printf("%s%c%s%c", key_, delim, value_, term);
  94        else
  95                printf("%s%c", key_, term);
  96        return 0;
  97}
  98
  99struct strbuf_list {
 100        struct strbuf *items;
 101        int nr;
 102        int alloc;
 103};
 104
 105static int collect_config(const char *key_, const char *value_, void *cb)
 106{
 107        struct strbuf_list *values = cb;
 108        struct strbuf *buf;
 109        char value[256];
 110        const char *vptr = value;
 111        int must_free_vptr = 0;
 112        int must_print_delim = 0;
 113
 114        if (!use_key_regexp && strcmp(key_, key))
 115                return 0;
 116        if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
 117                return 0;
 118        if (regexp != NULL &&
 119            (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
 120                return 0;
 121
 122        ALLOC_GROW(values->items, values->nr + 1, values->alloc);
 123        buf = &values->items[values->nr++];
 124        strbuf_init(buf, 0);
 125
 126        if (show_keys) {
 127                strbuf_addstr(buf, key_);
 128                must_print_delim = 1;
 129        }
 130        if (types == TYPE_INT)
 131                sprintf(value, "%"PRId64,
 132                        git_config_int64(key_, value_ ? value_ : ""));
 133        else if (types == TYPE_BOOL)
 134                vptr = git_config_bool(key_, value_) ? "true" : "false";
 135        else if (types == TYPE_BOOL_OR_INT) {
 136                int is_bool, v;
 137                v = git_config_bool_or_int(key_, value_, &is_bool);
 138                if (is_bool)
 139                        vptr = v ? "true" : "false";
 140                else
 141                        sprintf(value, "%d", v);
 142        } else if (types == TYPE_PATH) {
 143                if (git_config_pathname(&vptr, key_, value_) < 0)
 144                        return -1;
 145                must_free_vptr = 1;
 146        } else if (value_) {
 147                vptr = value_;
 148        } else {
 149                /* Just show the key name */
 150                vptr = "";
 151                must_print_delim = 0;
 152        }
 153
 154        if (must_print_delim)
 155                strbuf_addch(buf, key_delim);
 156        strbuf_addstr(buf, vptr);
 157        strbuf_addch(buf, term);
 158
 159        if (must_free_vptr)
 160                /* If vptr must be freed, it's a pointer to a
 161                 * dynamically allocated buffer, it's safe to cast to
 162                 * const.
 163                */
 164                free((char *)vptr);
 165
 166        return 0;
 167}
 168
 169static int get_value(const char *key_, const char *regex_)
 170{
 171        int ret = CONFIG_GENERIC_ERROR;
 172        struct strbuf_list values = {NULL};
 173        int i;
 174
 175        if (use_key_regexp) {
 176                char *tl;
 177
 178                /*
 179                 * NEEDSWORK: this naive pattern lowercasing obviously does not
 180                 * work for more complex patterns like "^[^.]*Foo.*bar".
 181                 * Perhaps we should deprecate this altogether someday.
 182                 */
 183
 184                key = xstrdup(key_);
 185                for (tl = key + strlen(key) - 1;
 186                     tl >= key && *tl != '.';
 187                     tl--)
 188                        *tl = tolower(*tl);
 189                for (tl = key; *tl && *tl != '.'; tl++)
 190                        *tl = tolower(*tl);
 191
 192                key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
 193                if (regcomp(key_regexp, key, REG_EXTENDED)) {
 194                        fprintf(stderr, "Invalid key pattern: %s\n", key_);
 195                        free(key_regexp);
 196                        key_regexp = NULL;
 197                        ret = CONFIG_INVALID_PATTERN;
 198                        goto free_strings;
 199                }
 200        } else {
 201                if (git_config_parse_key(key_, &key, NULL)) {
 202                        ret = CONFIG_INVALID_KEY;
 203                        goto free_strings;
 204                }
 205        }
 206
 207        if (regex_) {
 208                if (regex_[0] == '!') {
 209                        do_not_match = 1;
 210                        regex_++;
 211                }
 212
 213                regexp = (regex_t*)xmalloc(sizeof(regex_t));
 214                if (regcomp(regexp, regex_, REG_EXTENDED)) {
 215                        fprintf(stderr, "Invalid pattern: %s\n", regex_);
 216                        free(regexp);
 217                        regexp = NULL;
 218                        ret = CONFIG_INVALID_PATTERN;
 219                        goto free_strings;
 220                }
 221        }
 222
 223        git_config_with_options(collect_config, &values,
 224                                given_config_file, given_config_blob,
 225                                respect_includes);
 226
 227        ret = !values.nr;
 228
 229        for (i = 0; i < values.nr; i++) {
 230                struct strbuf *buf = values.items + i;
 231                if (do_all || i == values.nr - 1)
 232                        fwrite(buf->buf, 1, buf->len, stdout);
 233                strbuf_release(buf);
 234        }
 235        free(values.items);
 236
 237free_strings:
 238        free(key);
 239        if (key_regexp) {
 240                regfree(key_regexp);
 241                free(key_regexp);
 242        }
 243        if (regexp) {
 244                regfree(regexp);
 245                free(regexp);
 246        }
 247
 248        return ret;
 249}
 250
 251static char *normalize_value(const char *key, const char *value)
 252{
 253        char *normalized;
 254
 255        if (!value)
 256                return NULL;
 257
 258        if (types == 0 || types == TYPE_PATH)
 259                /*
 260                 * We don't do normalization for TYPE_PATH here: If
 261                 * the path is like ~/foobar/, we prefer to store
 262                 * "~/foobar/" in the config file, and to expand the ~
 263                 * when retrieving the value.
 264                 */
 265                normalized = xstrdup(value);
 266        else {
 267                normalized = xmalloc(64);
 268                if (types == TYPE_INT) {
 269                        int64_t v = git_config_int64(key, value);
 270                        sprintf(normalized, "%"PRId64, v);
 271                }
 272                else if (types == TYPE_BOOL)
 273                        sprintf(normalized, "%s",
 274                                git_config_bool(key, value) ? "true" : "false");
 275                else if (types == TYPE_BOOL_OR_INT) {
 276                        int is_bool, v;
 277                        v = git_config_bool_or_int(key, value, &is_bool);
 278                        if (!is_bool)
 279                                sprintf(normalized, "%d", v);
 280                        else
 281                                sprintf(normalized, "%s", v ? "true" : "false");
 282                }
 283        }
 284
 285        return normalized;
 286}
 287
 288static int get_color_found;
 289static const char *get_color_slot;
 290static const char *get_colorbool_slot;
 291static char parsed_color[COLOR_MAXLEN];
 292
 293static int git_get_color_config(const char *var, const char *value, void *cb)
 294{
 295        if (!strcmp(var, get_color_slot)) {
 296                if (!value)
 297                        config_error_nonbool(var);
 298                color_parse(value, var, parsed_color);
 299                get_color_found = 1;
 300        }
 301        return 0;
 302}
 303
 304static void get_color(const char *def_color)
 305{
 306        get_color_found = 0;
 307        parsed_color[0] = '\0';
 308        git_config_with_options(git_get_color_config, NULL,
 309                                given_config_file, given_config_blob,
 310                                respect_includes);
 311
 312        if (!get_color_found && def_color)
 313                color_parse(def_color, "command line", parsed_color);
 314
 315        fputs(parsed_color, stdout);
 316}
 317
 318static int get_colorbool_found;
 319static int get_diff_color_found;
 320static int get_color_ui_found;
 321static int git_get_colorbool_config(const char *var, const char *value,
 322                void *cb)
 323{
 324        if (!strcmp(var, get_colorbool_slot))
 325                get_colorbool_found = git_config_colorbool(var, value);
 326        else if (!strcmp(var, "diff.color"))
 327                get_diff_color_found = git_config_colorbool(var, value);
 328        else if (!strcmp(var, "color.ui"))
 329                get_color_ui_found = git_config_colorbool(var, value);
 330        return 0;
 331}
 332
 333static int get_colorbool(int print)
 334{
 335        get_colorbool_found = -1;
 336        get_diff_color_found = -1;
 337        get_color_ui_found = -1;
 338        git_config_with_options(git_get_colorbool_config, NULL,
 339                                given_config_file, given_config_blob,
 340                                respect_includes);
 341
 342        if (get_colorbool_found < 0) {
 343                if (!strcmp(get_colorbool_slot, "color.diff"))
 344                        get_colorbool_found = get_diff_color_found;
 345                if (get_colorbool_found < 0)
 346                        get_colorbool_found = get_color_ui_found;
 347        }
 348
 349        if (get_colorbool_found < 0)
 350                /* default value if none found in config */
 351                get_colorbool_found = GIT_COLOR_AUTO;
 352
 353        get_colorbool_found = want_color(get_colorbool_found);
 354
 355        if (print) {
 356                printf("%s\n", get_colorbool_found ? "true" : "false");
 357                return 0;
 358        } else
 359                return get_colorbool_found ? 0 : 1;
 360}
 361
 362static void check_blob_write(void)
 363{
 364        if (given_config_blob)
 365                die("writing config blobs is not supported");
 366}
 367
 368int cmd_config(int argc, const char **argv, const char *prefix)
 369{
 370        int nongit = !startup_info->have_repository;
 371        char *value;
 372
 373        given_config_file = getenv(CONFIG_ENVIRONMENT);
 374
 375        argc = parse_options(argc, argv, prefix, builtin_config_options,
 376                             builtin_config_usage,
 377                             PARSE_OPT_STOP_AT_NON_OPTION);
 378
 379        if (use_global_config + use_system_config + use_local_config +
 380            !!given_config_file + !!given_config_blob > 1) {
 381                error("only one config file at a time.");
 382                usage_with_options(builtin_config_usage, builtin_config_options);
 383        }
 384
 385        if (use_global_config) {
 386                char *user_config = NULL;
 387                char *xdg_config = NULL;
 388
 389                home_config_paths(&user_config, &xdg_config, "config");
 390
 391                if (!user_config)
 392                        /*
 393                         * It is unknown if HOME/.gitconfig exists, so
 394                         * we do not know if we should write to XDG
 395                         * location; error out even if XDG_CONFIG_HOME
 396                         * is set and points at a sane location.
 397                         */
 398                        die("$HOME not set");
 399
 400                if (access_or_warn(user_config, R_OK, 0) &&
 401                    xdg_config && !access_or_warn(xdg_config, R_OK, 0))
 402                        given_config_file = xdg_config;
 403                else
 404                        given_config_file = user_config;
 405        }
 406        else if (use_system_config)
 407                given_config_file = git_etc_gitconfig();
 408        else if (use_local_config)
 409                given_config_file = git_pathdup("config");
 410        else if (given_config_file) {
 411                if (!is_absolute_path(given_config_file) && prefix)
 412                        given_config_file =
 413                                xstrdup(prefix_filename(prefix,
 414                                                        strlen(prefix),
 415                                                        given_config_file));
 416        }
 417
 418        if (respect_includes == -1)
 419                respect_includes = !given_config_file;
 420
 421        if (end_null) {
 422                term = '\0';
 423                delim = '\n';
 424                key_delim = '\n';
 425        }
 426
 427        if (HAS_MULTI_BITS(types)) {
 428                error("only one type at a time.");
 429                usage_with_options(builtin_config_usage, builtin_config_options);
 430        }
 431
 432        if (get_color_slot)
 433            actions |= ACTION_GET_COLOR;
 434        if (get_colorbool_slot)
 435            actions |= ACTION_GET_COLORBOOL;
 436
 437        if ((get_color_slot || get_colorbool_slot) && types) {
 438                error("--get-color and variable type are incoherent");
 439                usage_with_options(builtin_config_usage, builtin_config_options);
 440        }
 441
 442        if (HAS_MULTI_BITS(actions)) {
 443                error("only one action at a time.");
 444                usage_with_options(builtin_config_usage, builtin_config_options);
 445        }
 446        if (actions == 0)
 447                switch (argc) {
 448                case 1: actions = ACTION_GET; break;
 449                case 2: actions = ACTION_SET; break;
 450                case 3: actions = ACTION_SET_ALL; break;
 451                default:
 452                        usage_with_options(builtin_config_usage, builtin_config_options);
 453                }
 454
 455        if (actions == ACTION_LIST) {
 456                check_argc(argc, 0, 0);
 457                if (git_config_with_options(show_all_config, NULL,
 458                                            given_config_file,
 459                                            given_config_blob,
 460                                            respect_includes) < 0) {
 461                        if (given_config_file)
 462                                die_errno("unable to read config file '%s'",
 463                                          given_config_file);
 464                        else
 465                                die("error processing config file(s)");
 466                }
 467        }
 468        else if (actions == ACTION_EDIT) {
 469                check_argc(argc, 0, 0);
 470                if (!given_config_file && nongit)
 471                        die("not in a git directory");
 472                if (given_config_blob)
 473                        die("editing blobs is not supported");
 474                git_config(git_default_config, NULL);
 475                launch_editor(given_config_file ?
 476                              given_config_file : git_path("config"),
 477                              NULL, NULL);
 478        }
 479        else if (actions == ACTION_SET) {
 480                int ret;
 481                check_blob_write();
 482                check_argc(argc, 2, 2);
 483                value = normalize_value(argv[0], argv[1]);
 484                ret = git_config_set_in_file(given_config_file, argv[0], value);
 485                if (ret == CONFIG_NOTHING_SET)
 486                        error("cannot overwrite multiple values with a single value\n"
 487                        "       Use a regexp, --add or --replace-all to change %s.", argv[0]);
 488                return ret;
 489        }
 490        else if (actions == ACTION_SET_ALL) {
 491                check_blob_write();
 492                check_argc(argc, 2, 3);
 493                value = normalize_value(argv[0], argv[1]);
 494                return git_config_set_multivar_in_file(given_config_file,
 495                                                       argv[0], value, argv[2], 0);
 496        }
 497        else if (actions == ACTION_ADD) {
 498                check_blob_write();
 499                check_argc(argc, 2, 2);
 500                value = normalize_value(argv[0], argv[1]);
 501                return git_config_set_multivar_in_file(given_config_file,
 502                                                       argv[0], value, "^$", 0);
 503        }
 504        else if (actions == ACTION_REPLACE_ALL) {
 505                check_blob_write();
 506                check_argc(argc, 2, 3);
 507                value = normalize_value(argv[0], argv[1]);
 508                return git_config_set_multivar_in_file(given_config_file,
 509                                                       argv[0], value, argv[2], 1);
 510        }
 511        else if (actions == ACTION_GET) {
 512                check_argc(argc, 1, 2);
 513                return get_value(argv[0], argv[1]);
 514        }
 515        else if (actions == ACTION_GET_ALL) {
 516                do_all = 1;
 517                check_argc(argc, 1, 2);
 518                return get_value(argv[0], argv[1]);
 519        }
 520        else if (actions == ACTION_GET_REGEXP) {
 521                show_keys = 1;
 522                use_key_regexp = 1;
 523                do_all = 1;
 524                check_argc(argc, 1, 2);
 525                return get_value(argv[0], argv[1]);
 526        }
 527        else if (actions == ACTION_UNSET) {
 528                check_blob_write();
 529                check_argc(argc, 1, 2);
 530                if (argc == 2)
 531                        return git_config_set_multivar_in_file(given_config_file,
 532                                                               argv[0], NULL, argv[1], 0);
 533                else
 534                        return git_config_set_in_file(given_config_file,
 535                                                      argv[0], NULL);
 536        }
 537        else if (actions == ACTION_UNSET_ALL) {
 538                check_blob_write();
 539                check_argc(argc, 1, 2);
 540                return git_config_set_multivar_in_file(given_config_file,
 541                                                       argv[0], NULL, argv[1], 1);
 542        }
 543        else if (actions == ACTION_RENAME_SECTION) {
 544                int ret;
 545                check_blob_write();
 546                check_argc(argc, 2, 2);
 547                ret = git_config_rename_section_in_file(given_config_file,
 548                                                        argv[0], argv[1]);
 549                if (ret < 0)
 550                        return ret;
 551                if (ret == 0)
 552                        die("No such section!");
 553        }
 554        else if (actions == ACTION_REMOVE_SECTION) {
 555                int ret;
 556                check_blob_write();
 557                check_argc(argc, 1, 1);
 558                ret = git_config_rename_section_in_file(given_config_file,
 559                                                        argv[0], NULL);
 560                if (ret < 0)
 561                        return ret;
 562                if (ret == 0)
 563                        die("No such section!");
 564        }
 565        else if (actions == ACTION_GET_COLOR) {
 566                get_color(argv[0]);
 567        }
 568        else if (actions == ACTION_GET_COLORBOOL) {
 569                if (argc == 1)
 570                        color_stdout_is_tty = git_config_bool("command line", argv[0]);
 571                return get_colorbool(argc != 0);
 572        }
 573
 574        return 0;
 575}
 576
 577int cmd_repo_config(int argc, const char **argv, const char *prefix)
 578{
 579        fprintf(stderr, "WARNING: git repo-config is deprecated in favor of git config.\n");
 580        return cmd_config(argc, argv, prefix);
 581}